JP2005049074A - Ceiling suspension type range hood fan - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the interior property by preventing the twisting of a range hood fan mounted on a plurality of anchor bolt so as to be height-adjustable, and shielding the anchor bolts with an exhaust duct by the twisting preventive means so as not to be visually confirmable from the outside. <P>SOLUTION: The range hood fan A mounted on a plurality of anchor bolts B having one-end sides fixed to a fixing member d in a ceiling D so as to be height-adjustable is fixed in a plurality of positions to a twisting preventive bracket 6 fixed in a plurality of positions to a ceiling panel P. The bracket 6 is composed of a duct cover 8 fixed to the ceiling panel P, which shields the exhaust duct E so as not to be visually confirmable from the outside. A fixing part F between the duct cover 8 and the range hood fan A is composed of an elliptic hole 26 provided on one side and a loosening and tightening fixture f guided by the elliptic hole 26, which is provided on the other side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a range hood fan, and more particularly to a ceiling-suspended range hood fan.

  Conventionally, a ceiling-mounted range hood fan is provided on the anchor bolt and the range hood fan after an anchor bolt is attached to a beam (fixing member) on the back of the ceiling so as to penetrate the ceiling panel in the kitchen room. It is connected to the suspension bracket using nuts.

FIG. 7 shows the range hood fan.
By the way, the reason for using the anchor bolt B is that the gap between the ceiling panel P and the range hood fan can be adjusted by adjusting the tightening position of the nut n or the like, so that the predetermined height position can be obtained regardless of the height of the kitchen ceiling. This is to install a range hood fan.
In addition, when the range hood fan is low in height, if the range hood fan is installed according to the height of the kitchen ceiling, the distance from the cooking utensil will be too far away, and oil smoke generated during cooking will be captured sufficiently. It may not be possible.
For this reason, the installation height of the ceiling-suspended range hood fan is appropriately set by adjusting the connection position of the anchor bolt B to the suspension bracket 3.
And the range hood fan has stood the air blower cover 2 from the food | hood body 1, accommodated the air blower C in the air blower cover 2, and has concealed it so that the air blower C cannot be visually recognized.
However, in the installation structure, although the vertical load can be received by the anchor bolt B, the twist direction depends only on the strength of the anchor bolt B itself, and the user carelessly touches the range hood fan. The range hood fan is greatly shaken by twisting, and an unreasonable load is applied to the anchor bolt B to reduce the reliability of the installation strength or to deteriorate the usability.
Prior art documents relating to the suspension structure of the ceiling-suspended range hood fan are unknown to the applicant.

The present invention has been made in view of the above-described conventional circumstances, and its intended purpose is to prevent twisting of a range hood fan attached to a plurality of anchor bolts in a suspended manner.
Another object is to improve the interior by hiding the anchor bolts together with the exhaust duct so as to be invisible from the outside by means for preventing the twisting.

  The technical means taken in order to solve the above-mentioned problem is that the range hood fan is attached to a plurality of anchor bolts whose one end is fixed to a fixing member on the back of the ceiling so that the height can be adjusted. A ceiling-suspended range hood fan characterized by being fixed to a fixing member on the back of the ceiling at a plurality of locations (Claim 1).

  The above means receives the load of the range hood fan with the anchor bolt, and receives the twisting force generated in the range hood fan at the fixing portion with the ceiling panel or the fixing member on the back of the ceiling.

In addition, in a range hood fan attached to a plurality of anchor bolts, one end of which is fixed to a fixing member on the back of the ceiling so that the height can be adjusted, a bracket for preventing twisting and a range hood fan fixed to the ceiling panel at a plurality of locations. It may be fixed at a plurality of locations (claim 2).
Here, various types of brackets for preventing twisting are prepared to have different heights, and can be freely adapted to the height of the kitchen ceiling.

  With the above means, the twisting force generated in the range hood fan is received by the dedicated bracket for preventing twisting and the fixed portion of the ceiling panel.

  The fixing portion between the twist-preventing bracket and the range hood fan is preferably constituted by a loose and tightenable fixing tool in which one is a long hole and the other is guided by the long hole. 3).

  The above means prevents the twisting of the range hood fan in which the bracket for preventing twisting is installed in a suspended manner at a predetermined height regardless of the height of the kitchen ceiling.

  In addition, it is optimal if the bracket for preventing twisting also serves as a duct cover for concealing the exhaust duct connected to the range hood fan from the outside.

  With the above measures, the bracket for preventing torsion prevents twisting of the range hood fan installed in a suspended manner at a predetermined height regardless of the height of the kitchen ceiling, and the duct cover takes the anchor bolt into view along with the exhaust duct. Does not function as a cosmetic cover.

  In a range hood fan attached to a plurality of anchor bolts, one end of which is fixed to the fixing member on the back of the ceiling so that the height can be adjusted. Without twisting, the range hood fan is prevented from twisting.

  As described above, since the range hood fan suspended on a plurality of anchor bolts having one end fixed to the fixing member on the back of the ceiling is fixed to the ceiling panel or the fixing member on the back of the ceiling at a plurality of locations. Even if a large swinging force that cannot be prevented by the anchor bolt is applied due to vibration or wiping force during cleaning, the range hood fan is prevented from shaking without imposing an excessive load on the anchor bolt, improving usability. (Claim 1).

Moreover, when a bracket for preventing twisting is used, the shaking force is distributed to the fixed part between the range hood fan and the bracket and the fixed part between the bracket and the ceiling panel. There is no risk of damage and durability can be improved. (Claim 2).
In addition, there is an advantage that the range hood fan can be installed at a predetermined height position regardless of the height of the kitchen ceiling by preparing plural kinds of brackets having different heights.

  If one of the fixing portions of the bracket for preventing twisting and the range hood fan is a long hole and the other is a loose / tight fastener that is guided by the long hole, the range hood fan is twisted. In addition, it is possible to install the range hood fan at a predetermined height regardless of the height of the kitchen ceiling without preparing a plurality of types of brackets having different heights.

  In addition, the bracket for preventing torsion also serves as a duct cover for concealing the exhaust duct connected to the range hood fan from the outside. It functions as a cosmetic cover that is hidden so as not to enter, and the interior quality can be improved while reducing the number of parts.

  In addition, if multiple anchor bolts are connected to each other with an anchor bolt fixing bracket, the range hood fan can be prevented from being twisted without being fixed to the ceiling panel, so the ceiling panel is not burdened at all and the strength of the ceiling panel is increased. This is suitable when there are restrictions or anxiety.

  The range hood fan has a blower cover erected on the top surface, and is closed by a twist prevention bracket that is fixed to the ceiling panel at a plurality of locations between the blower cover and the ceiling panel.

  The torsion prevention bracket also serves as a duct cover for concealing the exhaust duct from the outside, and as a fixing part to the blower cover, a plurality of long holes and a plurality of loose and tightenable guides guided by the long holes It has a fixture.

  Then, after suspending the range hood fan from the cooking utensil to a predetermined height with anchor bolts, adjust the height using the adjustment allowance of the long hole and fix it with the fixture, and adjust the adjustment amount to multiple locations After the adjustment, the torsion prevention bracket is fixed to the ceiling panel at multiple locations, and the torsion prevention bracket prevents the range hood fan from being twisted, and the blower cover and the torsion prevention bracket completely hide the anchor bolt. .

Next, an embodiment of the ceiling suspended range hood fan of the present invention will be described. FIG. 1 shows the first embodiment.
Reference numeral A is a range hood fan, and B is an anchor bolt.

  The range hood fan A has a blower cover 2 erected on the top surface of a substantially trumpet-shaped hood body 1 whose lower surface is opened, and a blower C is mounted on a horizontal bracket 12 provided in a transverse manner in the middle of the blower cover 2. Are attached in a suspended manner, and the suspension bracket 3 of the anchor bolt B is provided on the horizontal bracket 12.

  The blower cover 2 has a rectangular cylindrical shape with an open bottom surface, and a plurality of types with different heights are prepared for manufacture, and the top surface is an upper end on one end side of the fixing member d of the ceiling back D. An insertion hole 22 for inserting each of the plurality of anchor bolts B having the sides fixed therein is opened.

  The suspension bracket 3 is provided with a notch 131a in a horizontal piece 131 of an inverted L-shaped bracket 13 erected from a horizontal bracket 12 portion corresponding to an anchor bolt B inserted into the blower cover 2 from the insertion hole 22. The horizontal piece 131 is sandwiched and fixed by two fastening nut members 23 and 23 which are notched and screwed to the lower end side of the anchor bolt B so as to be movable up and down.

  In the range hood fan A, a rectifying plate 4 having an intake space S between the lower open edge thereof is disposed in the hood body 1 and a filter 5 is installed behind the rectifying plate 4 so that the waste gas containing the oil smoke is removed. The flow rate is increased from the intake space S and the air is sucked and oil and fat are removed by the filter 5 and exhausted to the outside from an exhaust duct E connected to the discharge port of the blower C.

The blower cover 2 has an outlet 32 for the exhaust duct E opened on the upper surface thereof, so that the exhaust duct E can be piped into the ceiling back D space.
In the present embodiment, the anchor bolt B is configured to suspend the range hood fan A with four pieces arranged so as to surround the exhaust duct E.
Further, the insertion hole 22 described above is opened to a diameter larger than that of the nuts 23.

The lifting range hood fan according to the first embodiment configured as described above selects a fan cover having a required height in consideration of the range hood fan A having a desired overall height and the height of the kitchen ceiling. The blower cover 2 is assembled in a standing manner on the top surface of the body 1 and is carried into the construction site.
At the construction site, one worker lifts the lower end side of the anchor bolt B to which the nuts 23 and 23 are screwed from the insertion hole 22 while supporting the range hood fan A. Then, another operator can use the elasticity of the long anchor bolt B from an openable and closable operation port (not shown) formed on the blower cover 2 to separate the nut 23 in the vertical direction. The anchor bolt B between 23 is inserted into the notch 131a from the open part, and the upper and lower nuts 23, 23 are fastened in a sandwiched manner, and then a plurality of upper surface parts of the blower cover 2 are fixed to the ceiling panel P with screws f. Part F is configured. The blower cover 2 may have its upper surface fixed to a bolt fixed to a beam that is a fixing member d of the ceiling back D.
Thereby, the installation work of the range hood fan A is completed.

  In this range hood fan A, the load can be received by a plurality of anchor bolts B, and the torsional force can be received by a plurality of fixing portions F of the blower cover 2 and the ceiling panel P.

  Next, a second embodiment shown in FIG. 2 will be described. In this embodiment, the ceiling panel P is connected to the blower cover 2 erected from the hood body 1 of the range hood fan A via the twist preventing bracket 6. Fixed at multiple locations.

The bracket 6 for preventing twisting described above is a strip-like piece in which an outward flange 16 is bent at the upper end side, which is one end side, and a plurality of types having different lengths are manufactured and prepared.
The bracket 6 for preventing twisting may be a cylindrical body that is fitted into the blower cover 2 at the lower end and is screwed. In that case, the outward flange to be screwed to the ceiling panel is provided around the upper end side to deal with it.
Since other configurations are the same as those of the first embodiment described above, the same reference numerals are given, and detailed descriptions thereof are omitted.

The suspended range hood fan of the second embodiment is a twist hood with a required height selected in consideration of the range hood fan A provided with a fan cover 2 having a predetermined height and the height of the kitchen ceiling. The necessary 6 brackets are carried into the construction site. The necessary screws 6 for preventing twisting are screwed to the inner surface of the blower cover 2 at the lower end thereof at the factory or construction site.
And the lower end side of the anchor bolt B which screwed the nuts 23 and 23 from the said insertion hole 22 is inserted in the fan cover 2, while one worker supports the range hood fan A similarly to 1st Embodiment mentioned above. Lift as you are. Then, another operator can use the elasticity of the long anchor bolt B from an openable and closable operation port (not shown) formed on the blower cover 2 to separate the nut 23 in the vertical direction. The anchor bolt B portion between 23 is inserted into a notch (not shown) from the open portion, and the upper and lower nuts 23, 23 are clamped. Then, the outward flange 16 on the upper end side of the bracket 6 for preventing twisting is screwed to the ceiling panel P to form the fixing portion F.
Thereby, the range hood fan A is fixed to a predetermined installation height.

  Next, a third embodiment shown in FIGS. 3 and 4 will be described. In the third embodiment, the duct cover 8 is formed in a cylindrical shape in which the torsion preventing bracket 6 is fitted into the blower cover 2. The bracket 6 for preventing twisting is provided with a fixing (screw) f guide long hole 26 that can be loosened and tightened with the blower cover 2.

  As in the first embodiment described above, a plurality of types of brackets for preventing twisting are prepared and prepared, and an outward flange 16 is provided on the upper end side which is one end side. .

The long holes 26 are opened at a plurality of positions including at least two positions facing the side surface portion of the blower cover 2, and the range hood fan A is set to a predetermined amount regardless of the height of the kitchen ceiling by the adjustment amount of the long holes 26. The exhaust duct E and the anchor bolt B are hidden so as not to be visible from the outside after being installed at the set height position.
About installation construction, since it is the same as that of the said 2nd Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  Further, a fourth embodiment shown in FIGS. 5 and 6 will be described. In this embodiment, a plurality of anchor bolts B are connected together by an anchor bolt fixing bracket 7 to prevent twisting of the range hood fan A without placing any burden on the ceiling panel P.

  As shown in FIG. 6, the anchor bolt fixing bracket 7 is formed in a rectangular frame shape having a central space that avoids interference with the exhaust duct E, and through holes 17 of the anchor bolt B are opened at each corner portion. Yes.

  On the other hand, each anchor bolt B is screwed with nuts 27, 27 that fasten the anchor bolt fixing bracket 7 from above and below at a height position in the middle thereof.

  The suspended range hood fan of the fourth embodiment configured as described above uses the elasticity of the long anchor bolt B in the vertical direction as in the first embodiment described above. The anchor bolt B between the nuts 23 and 23 in the separated state is inserted into a notch (not shown) from the open portion and the upper and lower nuts 23 and 23 are fastened in a sandwiched manner, and then between the blower cover 2 and the ceiling panel P Thus, the anchor fixing bracket 7 is clamped by the upper and lower nuts 27, 27 to constitute a twist preventing mechanism.

  In this embodiment, when the kitchen ceiling height is high, when very long anchor bolts must be used, the anchor bolt fixing brackets 7 are arranged at a plurality of height directions to efficiently prevent twisting. it can.

The longitudinal cross-sectional view of 1st Embodiment of this invention ceiling suspension type range hood fan. The figure is enlarged and partially cut away in a longitudinal sectional view showing a use state of the second embodiment. It is enlarged and partially cut away in a longitudinal sectional view showing a use state of the third embodiment. The exploded perspective view which shows the relationship between the bracket for twist prevention, and a fan cover in the same 3rd Embodiment. It is enlarged and partially cut away in a longitudinal sectional view showing a use state of the fourth embodiment. The perspective view of the principal part. The longitudinal cross-sectional view of the conventional ceiling hanging type range hood fan.

Explanation of symbols

A: Range hood fan 1: Hood body 2: Blower cover C: Blower d: Fixing member B: Anchor bolt 6: Bracket for preventing twisting P: Ceiling panel 26: Long hole F: Fixing part E: Exhaust duct 8: Duct Cover 7: Anchor bolt fixing bracket f: Fixing tool (screw)
D: Back of the ceiling

Claims (5)

  A range hood fan attached to a plurality of anchor bolts whose one end is fixed to a fixing member on the back of the ceiling so that the height can be adjusted. The range hood fan is fixed to the fixing member on the ceiling panel or the back of the ceiling at a plurality of locations. Ceiling suspended range hood fan characterized by   A range hood fan attached to a plurality of anchor bolts, one end of which is fixed to the fixing member on the back of the ceiling so that the height can be adjusted, and a plurality of brackets for preventing twisting and a range hood fan fixed to the ceiling panel at a plurality of locations. Ceiling-suspended range hood fan, characterized by being fixed by   3. The fixing part of the bracket for preventing twisting and the range hood fan is constituted by a fixing tool capable of being loosened and tightened, one of which is a long hole and the other is guided by the long hole. Ceiling suspended range hood fan as described.   4. The ceiling-suspended range hood fan according to claim 2, wherein the torsion preventing bracket also serves as a duct cover for concealing an exhaust duct connected to the range hood fan from the outside.   A ceiling hood characterized in that a plurality of anchor bolts are connected to each other by anchor bolt fixing brackets in a range hood fan attached to a plurality of anchor bolts, one end of which is fixed to a fixing member on the back of the ceiling, so that the height can be adjusted. A range hood fan.

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